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PAXILLOSTERONE

Year of first isolation: 1992
Formula:C28H46O8
Molecular weight:510
Occurence in plants:
Paxillus atrotomentosus [Fungi] » Images of Paxillus atrotomentosus Wikipedia: Paxillus atrotomentosus [Fungi]
Occurence in animals:
 
PAXILLOSTERONE

STRUCTURE DESCRIPTORS

Canonical SMILESCC(C)C(C)(CC(C(C)(C1CCC2(C1(CC(C3C2=CC(=O)C4C3(CC(C(C4)O)O)C)O)C)O)O)O)O
Isomeric SMILES
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C1[C@]2([C@@H](C[C@H]([C@H]1O)O)C(=O)C=C1C2[C@@H](C[C@]2([C@]1(CC[C@@H]2[C@]([C@@H](C[C@@](C(C)C)(C)O)O)(O)C)O)C)O)C » JSMol: View in 3D
IUPAC Name(2S,3R,5R,9R,10R,11R,13R,14S,17S)-2,3,11,14-tetrahydroxy-10,13-dimethyl-17-[(2R,3R,5R)-2,3,5-trihydroxy-5,6-dimethylheptan-2-yl]-2,3,4,5,9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one
CAS-RN 
PubChem CID15839567
InChiKey
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FWHGDMDGGPTQCK-RADOCEPBSA-N
InChIInChI=1S/C28H46O8/c1-14(2)26(5,34)13-22(33)27(6,35)21-7-8-28(36)16-10-17(29)15-9-18(30)19(31)11-24(15,3)23(16)20(32)12-25(21,28)4/h10,14-15,18-23,30-36H,7-9,11-13H2,1-6H3/t15-,18+,19-,20+,21-,22+,23+,24-,25+,26+,27+,28+/m0/s1

MASS SPECTRUM

EI-MS m/z (relative intensity %)510 (M)+ (0), 474 (8), 456 (39), 438 (41), 420 (31), 413 (54), 361 (28), 343 (57), 325 (28), 299 (21), 267 (32), 213 (21), 185 (18), 171 (23), 143 (17), 95 (24), 71 (44), 69 (41), 55 (36), 43 (100).
FAB-MS m/z (relative intensity %)511 [M+H]+ (96), 493 (100), 475 (55), 451 (39), 441 (15), 439 (15), 391 (13), 373 (28), 345 (29), 327 (19), 317 (24), 299 (29), 266 (19), 249 (27), 225 (24), 213 (23), 189 (23), 178 (28), 151 (64), 139 (41).

CARBON NMR

PROTON NMR

CD3OD
0139.06
0268.92
0368.55
0433.26
0552.76
06206.58
07122.28
08165.41
0942.93
1039.93
1169.46
1243.68
13a
1485.40
1531.90
1622.46
1749.97
1818.85
1924.64
2077.72
2120.66
2274.00
2341.20
2476.25
2537.32
2617.32
2718.85
2822.11
CD3OD
01-Ha1.37 (dd, 12.5, 11.8)
01-He2.58 (dd, 12.5, 4.0)
02-Ha4.00 (ddd, 4.0, 11.8, 2.6)
03-He3.95 (q, 2.6, 2.6, 2.6)
04-Ha1.78 (ddd, 2.6, 14.0, 12.8)
04-He1.68 (ddd, 2.6, 14.0, 4.0)
05-H2.33 (dd, 12.8, 4.0)
07-H5.80 (dd, 2.7, 0.7)
09-Ha3.13 (dd, 2.7, 8.9)
11-He4.09 (ddd, br, 8.9, 10.3, 6.3)
12-Ha2.19 (dd, 10.3, 12.5)
12-He2.14 (dd, 6.3, 12.5)
15-Ha1.95 (m )
15-Hb1.56 (m )
16-Ha2.01 (m )
16-Hb1.82 (m )
17-H2.28 (dd, 9.9, 8.4)
18-Me0.87 (s )
19-Me0.97 (s )
21-Me1.22 (s )
22-H3.76 (dd, 1.7, 10.5)
23-Ha1.72 (dd, 1.7, 14.7)
23-Hb1.44 (dd, 10.5, 14.7)
25-H1.89 (h, 6.8)
26-Me0.97 (d, 6.8)
27-Me0.90 (d, 6.8)
28-Me1.05 (s )

PHYSICAL PROPERTIES

M.P.219-225 °C
[α]D20 
IR (KBr) ν max (cm-1)3420 (OH), 1650 (cyclohexenone)
UV (EtOH) λ max (log ε)243 (4.07)

CHROMATOGRAPHY

NP-HPLCcolumn Silasorb 600 (4 x 250 mm), flow-rate 0.8 ml.min-1, solvent Et2O-hexane-MeOH-H2O (440:430:120:10), Ret 47.2 min (20E 47.5 min); solvent Et2O-CH3CN-H2O (780:190: 30), Ret 26.2 min (20E 31.7 min); solvent n-Hexane-iPrOH-H2O (690:285:25), Ret 29.1min (20E 35.2 min)
HPTLC 
TLC 
GLC 
RP-HPLCcolumn Separon SIX C18 (4 x 250 mm), solvent MeOH-H2O, linear gradient 10 to 70 % MeOH in 50 min, flow-rate 0.6 ml.min-1, Ret 42.0 min (20E 42.7 min).

BIOLOGICAL ACTIVITIES

Drosophila melanogaster BII cell assay: EC50 = 4.2 x 10-7M

REFERENCES

First isolationVOKÁČ, K. et al. (1992) Xth Ecdysone Workshop, Liverpool p. 125 Search more
BioactivitiesHARMATHA, J. et al. (1997) Arch. Insect Biochem. Physiol. 35, 219-225 Search more
GeneralVOKÁČ, K. et al. (1998) Phytochemistry 49, 2109-2114 Search more
Struct. analysisVOKÁČ, K. et al. (1998) Tetrahedron 54, 1657-1666 Search more

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© Université Pierre & Marie Curie, Paris 6, France
© Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Prague, Czech Republic
© Institut National de la Recherche Agronomique, Versailles, France
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